expression, godan verb (-u)
be confusing; be different from what one is used to
Describes a situation where things feel unfamiliar, awkward, or not as expected because the usual way of doing things doesn't apply. Often used when one is in a new environment or using unfamiliar tools.
新しい職場は勝手が違って、まだ慣れない。
Things are different at the new workplace, and I'm still not used to it.
他人のキッチンだ
In someone else's kitchen, things are different and it's hard to cook.