Collected Works Volume 5

Volume 5 (お兄ちゃんはおしまい!⑬⑭⑮, Onii-chan wa Oshimai!⑬⑭⑮) is the fifth collected works volume of Onimai: I'm Now Your Sister!. It is a compilation of Volume 13, Volume 14, and Volume 15 of the doujinshi with added bonus material. It was originally distributed at Comic Market 100 on August 13, 2022 before receiving a general release on November 1, 2022.

Bonus Material

 * Special Character Drawings
 * Bonus Drawings: Mahiro in her track suit, Mahiro and Mihari casual, Mahiro with Mahiri and Kaede in their BBQ Outfits, Asahi with Momiji and Nayuta and Miyo in their BBQ outfits,
 * Afterword