25-sai no Joshikousei 4

Natori Hana, a 25-year-old lady of sincerity and good humour, has a relative who refuses to attend high school. Taking her cousin's place, Hana enters high school in her place. Hana's old high school friend and the high school's global history teacher, Kanie Akito, discovers Hana's lie on her first day.