- Name：Koshiro Yamaguchi
- Birth Place：Amagasaki city,Hyogo Prefecture
- Date of Birth： February 8th,2001
- Interest：movie,manga,baseball game,Western music
- Favorite Food ：fried chicken,salmon,gummies,mango,tomato
- Hated Food：raw onions
- Specialty：Cracking two eggs with each hand,making a star from rubber band
- Others：The picture was taken when I go to watch Hanshin Tiger’s game. People often say I’m self-paced, goofy,or psychopath. Feel free to talk to me!