𝐢𝐧𝐟𝐚𝐭𝐮𝐚𝐭𝐢𝐨𝐧

in·fat·u·a·tion
/inˌfaCHəˈwāSH(ə)n/
noun
an intense but short-lived passion or admiration for someone or something.

in which Keiji becomes infatuated with the owner of a sketchbook he found.

Akaashi Keiji x Fem Reader