I like this a lot!!!! I'm here cooing over their adorableness as a family. Sho and Jun are such nice, responsible parents, with Satoshi who is perfect as the eldest son and Masaki and Kazu being so adorable. I love their pet's name - Biscuit <3
The situation in how Sho handling Satoshi's confession is just so admirable, I could imagine the real Sho handling the situation like what you wrote here.
And I love the small intimate moments of Sho and Jun as partners
<3