Second semester's debut

Senpai, the second semester has begun!

And "second semester" means school festival! It means our live!

How boring! she uses a kind of rebel girls' Japanese slang

Whaaat? Unlike you juniors, in the third year we're kinda busy, don't you know it?

University admission tests, job hunting, we're busy! You little brat!

Well, it's not that we want to do both things!

Sorry.

Yoroshiku it means "nice to meet you", but written as "夜路死苦" (lit. night-road-death-pain) is used by Japanese biker gangs as war cry or something like that.

Yoro- see Mugi's shirt below