快く
Meanings
1
comfortably; pleasantly; cheerfully
Describes a comfortable, pleasant state or manner, often used with verbs like 過ごす, 眠る, or 笑う.
I was able to spend time comfortably on the new sofa.
She gave a cheerful laugh for me.
2
Expresses doing something with a willing, positive attitude, often in response to a request or invitation.
He willingly helped me.
Please accept it gladly.