Osananajimi to Imouto

Hina can’t be with the one she loves because he’s her older brother, but she also can’t let go of him. Her friend Hana, who is into the occult, lends her a mysterious crystal that can supposedly let someone switch places with another person for one day. Turns out the crystal’s powers are for real, and Hina ends up switching with Yui, her brother’s girlfriend.
This work was in Comic Mugen Tensei 2018-07.