Rei Koito (小糸 怜 Koito Rei? ) is a university student and the older sister of Yuu Koito who has a talent for baking, and often makes cakes for her family and her boyfriend Hiro.


Rei has neck-length light pink hair that is tied in a side ponytail on the left side, brown eyes and she is slightly taller than Yuu.

Personality Edit

Rei is a understanding and supportive sister to Yuu, with whom she is close. She quickly comes to suspect Yuu's relationship with Touko is more than simply platonic and does her best to help them both with advice and support. When she isn't being serious, she enjoys affectionately teasing Yuu whenever she gets the chance.

Background Edit

Rei has been dating Hiro ever since high school where she was the one who confessed to him, which is partly because they were intimate before being official and partly because she didn't want someone else to ask him out.


  • The name Rei means "wise" (怜 rei).[2]
  • Rei's surname Koito means "small" (小 ko) and "yarn" (糸 ito).


  1. Bloom Into You 2018 Schedule Book
  2. Jisho
Yuu KoitoTouko NanamiSayaka SaekiAkari HyuugaKoyomi KanouSeiji MakiSuguru DoujimaNatsuki SonomuraManaka YoshidaMidori IgarashiChie YuzukiSerizawaOogaki

Miyako KodamaRiko HakozakiRei KoitoHiroTomoyuki IchigayaMio Nanami

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