What did Suji Kim write?
Suji Kim wrote Under the Oak Tree: The Novel, Volume 3, Under the Oak Tree: The Novel, Volume 2, Under the Oak Tree: The Novel, Volume 1, Under the Oak Tree: The Novel, Volume 4 (verified via Wikidata Q136992647 2026-07-02 20:11 UTC; Wikidata Q136992652 2026-07-03 04:30 UTC; Wikidata Q136992669 2026-07-03 20:08 UTC; Wikidata Q140323505 2026-07-02 09:53 UTC).