Why Are We So Bewildered When We Receive a Love Letter? / You Can Tell What Type a Person Is By Whether They Believe in Umas and Ufos or Not

Why Are We So Bewildered When We Receive a Love Letter? / You Can Tell What Type a Person Is By Whether They Believe in Umas and Ufos or Not

Available on Prime Video, Crunchyroll
S1 E4: On her way to school one morning, a boy from another school gives Himeno a love letter. The sudden turn of events has Himeno bewildered due to a traumatic memory from her childhood. What happened in Himeno's past?