This release was on 04/18/10.
Last event (Owners Gathering in Tenshi no Sato 04/10) – Next event (Harajuku Workshop Dolpa 23 Week)
Last Sumika event (Sumika One-off Release 03/10) – Next Sumika event (Harajuku Workshop Dolpa 23 Week)
Last Sumika one-off release (Sumika One-off Release 03/10) – Next Sumika one-off release (Sumika One-off Release 05/10)