[Aoiten (Aoten)] Maji de Ore no Imouto ga Koi o Shita Rashii zo | Seriously, My Little Sister Has Fallen in Love (Ore no Imouto ga Konna ni Kawaii Wake ga Nai)

Kyousuke Kousaka’s guarded affection for Kirino Kousaka gives way to a forbidden sibling confession as she reminds him how long she has known him as “Mana” and refuses to let him call himself an idiot. Their private conversation becomes a physical affair, tracing Kirino from embarrassment and nervous hesitation to willing intimacy before the closing page confirms that her love for her brother has turned sexual. Flushed faces, terse confessions, and a school-uniform coda sharpen the mood of awkward devotion and relinquished restraint.