I should also consider the technical aspects. For example, a gacha system would need a database of items, a random drop system, and user inventory. Security and user privacy are important, especially for 18+ content. Age verification and secure payment systems might be necessary. Compliance with regional laws is another factor here since it's Indo18, so adhering to Indonesian regulations is important.

Please let me know if this meets your expectations or if you would like me to revise anything.