Kanji info: 無償契約 — 和英／英和辞典

無

nothingness, none, ain't, nothing, nil, not

On'yomi: ム (mu)、ブ (bu)

Kun'yomi: な.い (na.i)

Radical components: ノ一乞杰無｜

Stroke order

償

reparation, make up for, recompense, redeem

On'yomi: ショウ (shou)

Kun'yomi: つぐな.う (tsuguna.u)

Stroke order

契

pledge, promise, vow

On'yomi: ケイ (kei)

Kun'yomi: ちぎ.る (chigi.ru)

Radical components: 二亠刀土大

Stroke order

約

promise, approximately, shrink

On'yomi: ヤク (yaku)

Kun'yomi: つづ.まる (tsuzu.maru)、つづ.める (tsuzu.meru)、つづま.やか (tsuzuma.yaka)

Radical components: 丶勹小幺糸

Stroke order