Itoko no Onee-chan ni Amaechau?
Igarashi Kyouhei
Ongoing2024
Synopsis
Masato Ooizumi just entered high school and he finds himself staying with a relative. Living there is his “cousin big sister” who's being way too close with him!? ___ **Additional Links:** - [Official X](https://x.com/itoko_ane0517)
31+
Chapters
—
Rating
2024
Year
Chapters(31 loaded)
Ch. 26Ako-nee's Request ♥︎
Feb 28, 2026Ch. 25.3Illustration Gallery + Extra Pages
Feb 24, 2026Ch. 25.2Saya-neechan's taking a nap ♥︎
Jan 24, 2026Ch. 25.1Aunt Shiho is defensless too ♥︎
Dec 18, 2025Ch. 25Lately, Ako-nee has been acting a little ••• ♥︎
Dec 10, 2025Ch. 24Taking Care of my Onee-chan ♥︎ (Part 2)
Dec 10, 2025Ch. 23Taking Care of my Onee-chan ♥︎ (Part 1)
Dec 10, 2025Ch. 22On my Way Home with the Class President ♥︎
Dec 10, 2025Ch. 21Doing Hypnosis on my Onee-chan ♥︎
Dec 10, 2025Ch. 20The Dual Nature of Ako-nee ♥︎
Dec 9, 2025Ch. 19A Date with my Onee-chan and A Parfait ♥︎
Dec 9, 2025Ch. 18I'll Clean your Ears ♥︎
Dec 9, 2025Ch. 17.23 Special Illustrations + Extra Pages
Dec 9, 2025Ch. 17.1See-through ••• ♥︎
Dec 9, 2025Ch. 17Peeking at Onee-chan ♥︎
Dec 9, 2025Ch. 16Class President in Trouble ♥︎
Dec 9, 2025Ch. 15Playing a board game with Onee-chan♥
Nov 8, 2025Ch. 13I got drunk ♡
Oct 13, 2025Ch. 12You really looked cool♥
Aug 21, 2025Ch. 11Let’s go Swimming♥
Aug 20, 2025Ch. 10Health class with Onee-chan♥
Jun 28, 2025Ch. 9.5Skimpy Swimsuit ❤︎
Feb 24, 2025Ch. 9Let's Cool off Together 🖤
Feb 24, 2025Ch. 8A Watch Party With the 3 of Us 🖤
Jan 6, 2025Ch. 7My Other Big Sister Cousin 🖤
Jan 5, 2025Ch. 6A Reward for You ❤
Sep 3, 2024Ch. 5Sending Love and Support ❤️
Aug 21, 2024Ch. 4Let Me Play With You ❤︎
Aug 17, 2024Ch. 3Chapter 3
Jul 13, 2024Ch. 2Chapter 2
Jul 6, 2024Ch. 1I will teach you♥
May 24, 2024