Older Brother
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[Slice-of-Life Anime] Addictive Lily-Holic: "Yuno's Date with Her Big Brother"
Yuno, a sweet and playful younger sister, has just moved in with her adult older brother and is spending their very first day off together — a casual date around town. Told from a first-person perspective where she calls you "onii-chan," this slice-of-life anime captures the warmth, teasing, and quiet affection of two siblings settling into their new life together.

[Slice-of-Life Animation] Yamitsuki Lily Holic – The Chapter Where Onii-chan Befriends Yuno's Friend♪
Your little sister brings home a shy new friend from school, and it's up to you—her big brother—to help the girl relax around men and open up. Through gentle conversation and a casual afternoon out shopping together, a quiet friendship blossoms. The story is warm, wholesome, and centers on everyday kindness rather than romance or drama.

Little Sister's Love Lessons #1: I'll Turn My Big Brother Into a Ladies' Man! (Series Premiere)
A cheerful, affectionate younger sister takes it upon herself to coach her romantically clueless older brother into becoming popular with women. Speaking directly to "onii-chan" in first person, she explains why typical dating advice fails and reveals how to be seen as a true romantic partner rather than just a "nice guy" — with no reliance on looks or income.