Ii Ko feat. Kasukabe Tsumugi
OSTER project
#231
Peak
12 wk
Weeks on chart
+8,066
Views gained
April 2025 (Week 3)
Debut
Rank history
| Week | Rank | Views gained |
|---|---|---|
| April 2025 (Week 3) | #231 | +2,045 |
| April 2025 (Week 4) | #239 | +2,433 |
| May 2025 (Week 1) | #371 | +805 |
| May 2025 (Week 2) | #428 | +521 |
| May 2025 (Week 3) | #432 | +223 |
| May 2025 (Week 4) | #367 | +383 |
| May 2025 (Week 5) | #387 | +357 |
| June 2025 (Week 1) | #388 | +387 |
| June 2025 (Week 2) | #463 | +288 |
| June 2025 (Week 3) | #477 | +214 |
| June 2025 (Week 4) | #465 | +212 |
| July 2025 (Week 1) | #484 | +198 |
