released on August 8, 2018.
| Jikochuu de Ikou! (Type A) [CD+DVD] Catalog: SRCL-9913 | 1. | Jikochuu de Ikou! (ジコチューで行こう!) | | 2. | Sorahi (空扉) | | 3. | Sankaku no akichi (三角の空き地) | | 4. | Jikochuu de Ikou! ~off Vocal Ver.~ (ジコチューで行こう! ~off Vocal Ver.~) | | 5. | Sorahi ~off Vocal Ver.~ (空扉 ~off Vocal Ver.~) | | 6. | Sankaku no akichi ~off Vocal Ver.~ (三角の空き地 ~off Vocal Ver.~) | |
|
| Jikochuu de Ikou! (Type B) [CD+DVD] Catalog: SRCL-9915 | |
| Jikochuu de Ikou! (Type C) [CD+DVD] Catalog: SRCL-9917 | |
| Jikochuu de Ikou! (Type D) [CD+DVD] Catalog: SRCL-9919 | |
| Jikochuu de Ikou! [CD] Catalog: SRCL-9921 | |