[Haikyuu!!] I Got a Sign-In System After I Transmigrated

Feng Jian Ling transmigrated in the most cliché way imaginable. The good news: He had a check-in System. The bad news: The way to check in was a little unusual. "So, I just need to say something at the check-in location, right?" [Yep!] [And once you complete it, you can get a mysterious check-in reward!] "...Oh." "Got it. The location is this volleyball court where a middle school tournament is being held?" [That's right, Host! You just need to go into the bathroom and say, 'What a disappointment. Is this really the level of play they're letting onto the court these days?'] "...?" No, no matter how you looked at it, that was just asking to get beaten up, wasn't it? "No. That's too weird." [You will die if you don't check in.] "..." "When are we going?" A few things to know: The writing is amateurish. The male lead transmigrates into someone else's body. He couldn't play volleyball before and isn't athletic. At first, the System pushes him around, but he'll change his mind later. The author's writing is pretty bad, and judging by the chapters I've drafted so far, it's quite awkward. The first eight chapters are already written. The male lead is Chinese. The original owner of his body is a Dragon-Ao-Tian type, and with his help, the male lead becomes another Dragon-Ao-Tian type (?). Feel-good story, no CP, and the cheat is overpowered. There's a reason he has to say such infuriating things (tears). The author supports all the teams, but Karasuno will win Spring High. Don't read if you mind. I've watched a few men's volleyball matches and read a volleyball encyclopedia. Everything else I know about volleyball comes from anime, so please gently point out any mistakes or omissions. The cover is from Neka, and commercial-use permission has been purchased. The artist's name is on the cover. Theme: If you're asking to get punched, one day you will be.