This is the sequel - https://www.mangago.me/read-manga/kimito_koete_koininaru/
NO WAY ?! REALLY? you mean it or you are just messing with me? i already read it and i found it so cute! but since you said its a sequel i will reread it all over again <3
Its their kid.
Gurl they have an animation about their sons Love life though it's more in the safe side vanilla a bit of kissing the parents are Wild
BLESS YOU
And I still love it! I wonder if they ever got married, if they had babies… I wonder and i wish for a happy future.. they deserve it