Japanese · Grade guarantee on the A+ plan

Personal AI Japanese Tutor Online That Teaches You How to Use It

Write the sentence and the tutor asks what you are marking as known information before it touches the particle. Wa against ga cannot be translated into English, so it has to be taught as a choice rather than corrected as an error.

+0.6 GPA 1学期で、A+ プランなら保証付き
A+ プラン限定 解法の得点は、実際に練習して伸ばせる試験の評価ポイントです。 利用条件をすべて読む
得点を落としやすいポイント
解答の前にヒント写真・PDF・スライド・録音途中式つきの図解苦手なテーマに関するクイズ
行き詰まった問題をそのまま持ち込もう
AIチューターの準備ができました
次に起こること
1ヒント答えそのものではなく
2ウォークスルー希望すれば
3チェックポイント質問を返す
4クイズ数日後
いつでも完全な解答を求められます。ただし、最初から答えだけを示すことはありません。
クイック回答

What is the AskSia AI Japanese tutor?

The AskSia AI Japanese tutor is a personal tutoring tool that explains why a particle or verb form is required rather than translating around it. It opens with a question about what you are treating as known information, shows the contrast with a minimal pair when you ask, closes by asking you to build the next sentence, and builds quizzes weighted toward the structures you keep avoiding. You can write a sentence, photograph a textbook page or a handwritten exercise, upload course slides or pull an assignment from your LMS. It covers kana, particles, verb groups and the te form, plain and polite registers, counters, keigo, kanji readings and the conditional forms, and it can explain in eight languages including your first. Students on the AskSia A+ plan are additionally covered by the Grade Confidence Guarantee. AskSia is a study aid, not an answer key.

セッションの進み方

実際のチュータリングと同じ、4つのステップ

解答が出ればソルバーは終わり。次の問題を一人で解けるようになったとき、チュータリングは完了です。

1
ヒント

答えではなく、次の一歩のヒント

つまずいた手順を示し、次の一手を自分で考えられるよう問題を返します。

2
ウォークスルー

一行ずつ、図解とともに

さらに求めれば、最終結果だけでなく解法を一行ずつ説明します。

3
チェックポイント

あなたに問い返します

次に進む前に、短い問いで次の手順を自分のものにできたか確認します。

4
クイズ

あとでもう一度出題します

苦手分野は、思い出す練習が解法の定着につながりやすいタイミングで再登場します。

今すぐ答えが必要です

夜11時、課題の提出期限が迫っている

期限が最優先なら、問題ソルバーで途中式を含む完全な解答を確認してください。

問題ソルバーを使う
自分で解けるようになりたい

試験まであと3週間

次の問題にも使える解法を残すため、チューターはあえてゆっくり進めます。

成績向上保証 · AI Japanese TutorA+ プラン限定 · 成績証明に基づく・条件公開済み・v2026.05
A+ プラン限定
解き方を教えるからこそ、成績を約束できます ✦
大学 · GPA A+ プラン限定
+0.6 GPA
保証は学習記録に基づき、A+ プランのみで提供されます。申し込み前に適用条件をすべてご確認ください。
AI Japanese Tutor · 得点につながるポイント
Choosing wa or ga by translationM1
Learning kanji readings in isolationM1
Ignoring transitive and intransitive pairsM1
最初の誤った手順を特定しますM1
途中式は解答の横に表示され続けますA1
A+ プランでは:1学期この学習手順に取り組み、目標に届かなければ返金を申請できます解答そのものは保証できません。採点される解き方なら保証できます。無料プランと他の有料プランでもチューターは利用できますが、返金は対象外です。 利用条件をすべて読む
契約上の保証 ✦
毎学期
得点を落としやすいポイント

毎学期、得点を落とす3つの習慣

Japanese grades stall in three predictable places, and none of them are vocabulary size. Your tutor watches for these in your own writing.

01

Choosing wa or ga by translation

English has no equivalent, so translating the sentence gives no signal at all. The tutor asks what is already known to the listener, which is the distinction the particle actually encodes.

02

Learning kanji readings in isolation

A reading memorised alone does not survive contact with a compound. The tutor introduces each kanji inside two or three words you will actually meet, which is how the readings become predictable.

03

Ignoring transitive and intransitive pairs

Using the wrong member of a pair changes who did the action, which is a meaning error rather than a style error. The tutor asks whether anyone caused the event before accepting the verb.

練習と進捗管理

問題集ではなく、あなたの間違いから作るクイズ

Your marks are not lost evenly, so your practice is not spread evenly. Try this one.

あなたの苦手分野からPARTICLES
Which particle completes the sentence: 部屋_入る (to enter the room)?
この答えになる理由。 Why B. 入る takes に because the room is the destination the movement arrives at, not the object being acted on. The trap is that English says enter the room with no preposition, which makes を look like the direct object marker it would be for a transitive verb.
記述式の問題では、最終値だけでなく各手順の考え方が採点されます。
対応範囲

このチューターがサポートする内容

Absolute beginner through to the grammar most degree programmes reach in second year. Upload your textbook pages and AskSia follows its order and vocabulary.

KANA
Hiragana and katakana
Including the long vowels and small kana
PART
Wa and ga
Topic against subject, and why both can be correct
PART
Wo, ni, de, e and to
The distinctions English collapses into one preposition
VERB
Verb groups and conjugation
Godan, ichidan and the two irregulars
VERB
The te form
Requests, sequencing, progressive and permission
VERB
Transitive and intransitive pairs
Why the door opened is a different verb
VERB
Conditionals
Ba, tara, to and nara, and when they are not interchangeable
ADJ
I and na adjectives
Negation, past tense and connecting them
REG
Plain and polite form
Choosing register by audience, not by difficulty
REG
Keigo basics
Humble and honourable forms in email and interviews
KANJI
Kanji readings and radicals
On and kun, learned through compounds
COUNT
Counters and numbers
The counters an exam actually asks for

Preparing for the JLPT? The N5 to N3 grammar is covered here in full. Studying another language with a similar honorific system? Start with Korean, or with Chinese for the shared characters.

質問を入力してください自分の途中式を撮影授業資料をアップロード録音を持ち込むオンライン小テストのスクリーンショットLMSの課題
チャットボックスではなくチュータリング

Four things a language tutor does that a chat box does not

質問だけでなく、学習履歴も把握します

次のセッションは、実際につまずいた手順から始まり、トピック全体を一般的に繰り返すことはありません。

代数だけでなく、図解も示します

図解は途中式の各手順の横でラベル付きで組み立てられ、視覚的な考え方も独立した得点につながります。

自分の途中式で最初に間違えた行を見つけます

うまくいかなかった解答を撮影すると、解法がずれた最初の手順を見つけ、その手順を教えます。

あなたのコースに合わせて確認します

記述式は、選択問題の問題集ではなく、あなた自身の試験形式に合わせた練習が必要です。

この方法が機能する理由

Why translation cannot teach Japanese grammar

The particles that decide a Japanese grade have no English counterpart, so a translation based explanation always arrives one step short. The tutor asks what you are marking as known before it names the particle, and shows the same sentence both ways so the difference becomes something you can hear rather than a rule you memorised.

Personal here means it remembers which structure you steer around. Avoidance never shows up in a corrected text and always shows up in a record of what you never attempt, so the tutor sets tasks that require the te form or a conditional rather than waiting for you to try one. Connect your LMS once and it follows your textbook's order and vocabulary, which matters when Genki, Minna no Nihongo and Tobira introduce the same grammar in different sequences.

It can explain in English, German, Korean, Spanish, Portuguese, Simplified Chinese and Traditional Chinese while keeping the practice in Japanese, so the explanation never becomes the hard part.

よくある質問

学生が実際に尋ねる質問

Does it just correct my Japanese?

No. It asks what you meant, then shows the contrast that makes the choice visible, usually as the same sentence with the other particle. Each exchange ends by asking you to build the next sentence. You can request a straight correction at any point, but it will not lead with one.

Can it explain grammar in my first language?

Yes. Explanations can be in English, German, Korean, Spanish, Portuguese, Simplified Chinese or Traditional Chinese while the practice stays in Japanese, which keeps the difficulty in the Japanese.

Can it read handwritten Japanese?

Yes. Photograph the page, including your crossings out, and it reads the handwriting as written. This is the most common way students ask about a marked exercise.

Does it follow my textbook?

It does once your material is connected. Genki, Minna no Nihongo and Tobira introduce the same grammar in different orders, and being taught a form your class has not reached is not helpful.

Does it cover JLPT preparation?

Yes. The N5 to N3 grammar is covered in full, and quizzes can be weighted toward the level you are sitting rather than spread across the syllabus.

Is using an AI Japanese tutor allowed?

AskSia is built as a study aid, not an answer key. Using it to understand a particle, check your own writing, or generate extra practice sits in the same category as a language tutorial. Assessment rules differ, and language courses are often strict about assisted writing, so check your own faculty's AI policy before using any tool on graded work.

すべての科目

AskSiaのチューター 149名

どの科目でも同じアプローチです。つまずいている手順に的を絞ったヒントを、あなた自身の授業教材をもとに教え、最後に考えるための質問をお返しします。

解き方を学ぶ。 得点につなげる。

行き詰まった問題を持ち込んでください。チューターはまずヒントを出し、一緒に取り組み、最後に問いを返します。

保証の詳細を見る