Suicide

A blonde anime girl in a maid outfit stands against a blue background as the letter 'S' appears, then the scene cuts to a red-haired girl in a similar outfit on a purple background with the name 'Sadi Oneesan' displayed, followed by two boys in school uniforms on a green background with the 'S' logo, and finally a girl with a red bow and a white shirt on a grey background with text about a 'Suicide Childhood Friend' and a 'Literature Club' form.