When Haruka gets to know Mizuki Watanabe, he's intrigued. A problem surfaces, and Haruka finds out that she suffers from aquaphobia. Not accepting the fact that there is such a person who fears water with such passion, he takes up the task of helping Mizuki overcome her fears. It's time to test the waters! Haruka x OC x Rin. Other pairings added later on.

Allison Taylor moved halfway across the world, stuck with her workaholic father. Meeting bad boy Hanamiya was the last thing she needed; he refuses to let go of his toys until they break, and she was no different. Meeting Kiyoshi, she starts to accept her situation. She adapts. She falls in love. And unless she's seeing things, Hanamiya is raging with jealousy.

Leanne Reed has stumbled onto a man who claims to be an android. An expert in retrieving information, he wastes no time in hacking into her personal data for "research", and decides to guard her health as payment for her kindness, forcing her to take him in her home. But when fiction turns into reality and bullets start flying, she realizes she may be in over her head!

Amelia Walker is heartbroken and survives the pain by focusing on protecting Sternbild as a hero. She shuts out her family who want to help. Kotetsu sees how her isolation is getting in the way. He makes it his mission to help her rebuild her trust in others. She's grateful, but Amelia refuses to rely on anyone. After all, this mission is impossible... Kotetsu x OC & Barnaby x OC