I’m not sure what you mean by that phrase or which 2018-verified source you want an essay about. I’ll assume you want a short, polished essay about the 2018 Japanese song/phrase "Shinseki no Ko to wo Tomari Da — Kakara" (or a similarly romanized title). I’ll write a concise, general literary-style essay interpreting the phrase as meaning something like "Because I stopped being the child of a new century" (or "Because I stopped being a child of the new family")—a reflective, thematic piece. If you meant a specific song, book, or verified 2018 source, reply with that title or a link and I’ll revise.
The story follows a male protagonist who is asked by his relative to look after their teenage daughter, Aki, for a short period. I’m not sure what you mean by that