[Himeno Mikan] Which is Which (COMIC LO 2022-04) {Mistvern}

A single loner takes in a relative's eleven-year-old daughter, only for the adoring little girl to see straight through his lolicon heart, dub him 'Papa,' and demand naughty play like it's their special routine. But when he nearly moans the wrong name mid-lick, the sweet arrangement cracks open: 'Touka' is actually identical twins Fuyu and Natsu secretly swapping places to share—and hoard—time in their guardian's bed. What follows is a mischievous identity-swap game of turn-taking, bait texts, and video-call interrogations, where the only one who can't tell which is which is the man happily buried between them.