Kiri's mother happens to be a male with both sexes and has the ability to give birth. His mother gave birth to three children. Kiri is a strong, chivalrous guy who likes cleanliness and the only person who gives him peace of mind is his childhood friend Minato whom he sees as a younger brother. One day something strange happened to Kiri, even though he was raised as a guy - he suddenly finds that he got his period! He may also be the same as his mom, which he doesn't want to admit to and runs off to Minato to get away from his family. However, turns out Minato knew about Kiri's mom and was waiting for Kiri to be the same so they can be together! Kiri freaks out about this and goes back home, what oh what is he to do!? Description by LuffyNoTomo

4-volume series that were published after the main series. Each volume has a different title. Volume names with publishing order: Papa Told Me - Machi o Arukeba (2008) Papa Told Me - Watashi no Suki na Wakusei (2009) Papa Told Me - Cafe de Michikusa (2010) Papa Told Me - Mado ni Tomori no Tomoru Koro (2011)

One night while Yuuki is patrolling again, she finds binoculars. Curious about it, she looks through the item and spots Kaname-senpai at the moon dorm. What's more Zero is also there, sleeping. Why he is there, Yuuki doesn't know, but what she sees next is something she never expected to witness.