Takane No Hana No Kanchigai Fiance Elite Fukushacho Ha Uchikina Reijo Wo Dekiai Suru (Gabriela Books) [Light Novel]

[Machine Translation] Miyu takes care of Akihiro, who hit his head in an accident, in place of her older sister, Misaki, who ran away from home because she hated the engagement their parents had arranged. She is an older childhood friend who is both near and far from being a "high peak" for Miyu, but after the shock of the accident, Akihiro, who has forgotten about Misaki, believes that the devoted Miyu is his fiancee and loves her dearly. He is in love with Misaki, but the shock of the accident causes Akihiro to forget about her, and he believes that she is his fiancee.

親が決めた婚約を嫌って家出した姉、美咲の代わりに、事故で頭を打った彰寛の看病をする美優。年上の幼馴染みである彼は美優にとって近くて遠い“高嶺の花”だったが、事故の衝撃で美咲のことを忘れた彰寛は、献身的な美優のことを自分の婚約者だと信じて溺愛する。「ずっとこうして美優を感じたいと思ってた」好きだった相手に抱かれて幸せを感じるも、本当のことを言えず苦悩する美優は―!?