Sakura-chan's manga / #System(1)

https://newtoki321.com/webtoon/34150417?stx=%EC%B2%9C%EC%9E%AC%EC%9E%91%EA%B0%80%EC%9D%98+%EB%9E%9C%EB%8D%A4+%EC%9E%91%EC%97%85%EC%8B%A4&title=%EC%B2%9C%EC%9E%AC%EC%9E%91%EA%B0%80%EC%9D%98-%EB%9E%9C%EB%8D%A4-%EC%9E%91%EC%97%85%EC%8B%A4