The first CD release by "MELLOW DEAR US", a unit from the hugely popular app game "Ensemble Stars!!". In addition to "Dear World" and "Mellow Addiction", the release includes many new songs by the unit. The first press limited edition is a 2CD + Blu-ray set. CD2 includes solo songs, and the Blu-ray includes music videos and more. Includes a lottery application ticket (system requirements unknown) enclosed in the CD for "MELLOW DEAR US 1st JAPAN Tour Final "NICE to meet YOU !!" Dear Yokohama BUNTAI" [CD enclosed serial advance application period: 2026/4/27 (Mon) 20:00 - 2026/5/10 (Sun) 23:59 JST].