Loved the art and story, only one thing missed. The MC claimed his family moved but the next morning he was leaving his apartment saying “Bye Mom”, otherwise good story.
34 pages...? Nice.
How nice that their father so conveniently got a transfer though, leaving the two of them alone at home...
"These days will continue well into the future"? I suppose they would, you lucky bastard, you.
Gentlemen (and Ladies) ... BEHOLD: a new contender for Luckiest Bastard in H-Universe 2020; he scored a Double Combo of "Sexy Onee-San/Teacher" and "Imouto with slight Tsundere tendencies". And it seems Mitsuki and Chisato are each very willing to share Tatsuya and his "little(?) friend".
In The End, There Can Be Only One Conclusion ..... "APPROVED!"