You are a second year and the manager of Shiratorizawa, one of the volleyball team members, probably Taichi, made the group chat, but the maker is unknown

Tendou: What is this?? 😃😃

Semi: Who cares- 😐

Shirabu: But should we care? 😒

Ushijima: We don't need a group chat-? 🧐

Goshiki: Wut- 😦

All except Goshiki: Stfu- 🙄