方言かな。ケンタの家は祖母の影響で、ところどころ関西＋九州のミックスな言葉が混ざる。「だからでな」は「だからねえ / そういうわけでねえ」というニュアンス。これが妙にツボに入った。
The title roughly translates to "Because I'm Staying Over with my Relative's Child" . Based on community discussions and shared "sauce" posts, the story follows a familiar trope in the genre—a protagonist who finds themselves in an unexpected living situation with a relative, often leading to awkward or comedic "stayover" scenarios. The "Facebook Exclusive" Phenomenon shinseki no ko to o tomari dakara de na facebook exclusive