A Sister's All You Need. @Comic

妹さえいればいい。@comic

Itsuki Hashima writes light novels obsessively devoted to little sisters, and lives with his younger sibling Chihiro, who quietly keeps the household running. Around him orbits a makeshift literary family: Nayuta Kani, a genius novelist openly in love with him; his college friend Miyako Shirakawa; and a long-suffering editor. Between deadlines, drinking parties, and game nights, the group turns the business of writing into an ongoing comedy. This manga adapts the original light novel series.