#raine ames

Demon Slayer: Genya gets extremely sick in the night and despite their differences, and his brother's hatred, the teenager really wants his brother. He wants something familiar, something that reminds him of home. Either Tanjiro gets Sanemi after Genya collapses, or Genya stumbles to Sanemi's room in the middle of the night. The older Shinazugawa reluctantly takes care of his little brother.

Sparks of Tomorrow: While during their trip (to Paris, I believe), Kihachi gets sick. He feels bad about ruining his brother's trip, but Inako is more than happy to take care of his little brother. After all, it's a big brother's job.

Mashle: Rayne always looks out for his little brother. After Finn gets hurt during the competition, Rayne looks after him. Que protective mode.

Chainsaw Man: While taking care of Denji, Aki reflects on a time when he was sick as a child. Normally, Tazuna was the one who was always sick; he needed their parents, so when Aki got sick - he kept insisting he was fine.

Sasaki to Miyano: Sasaki gets sick one night while his parents are asleep. His sister finds him in the bathroom after coming back later from her boyfriend's and looks after him like old times, despite the teenager's attitude.

Not brotherly love but i still think about:

Trigun: Modern day AU where Wolfwood gets sick and Vash, the ever-loving boyfriend he is, looks after him. Nai finds it incredibly annoying.

Link Click: Cheng Xiaoshi gets sick and has a hard time deciphering which reality he is in when his fever spikes. He's lived so many different lives in so many different frames; Lu Guang keeps him straight.

Dr. Stone: Kid Senku gets sick for the first time while in Byakuya's care; he gets sick for the last time in Byakuya's care and/ or Gen gets sick for the first time in the stone world. Senku is extremely suspicious, but Gen needs to show his worth despite the scientists medaling.

Heaven Officials Blessing: Hua Cheng gets sick while staying at Xie Lian looks lovingly after him.