Singing With You in a World Where Cherry Blossoms Dance is the 18th event in Project SEKAI COLORFUL STAGE!. This event featured the leader of each groups, and the event period started on April 1st, 2021 and ended on April 9th, 2021. This is the first Cheerful Carnival event.
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|- ! style="width:95%;overflow:auto; padding:0.3em 0.4em 0.2em 0.4em; margin:10px 0 10px 0; border:1px solid transparent; color:#fff;font-weight:bold; background:#ffa3c2; background-image:-webkit-linear-gradient(left, #ffffff 0%, #ffa3c2 10%, #ffa3c2 90%, #ffffff 100%);" |Event Rankings & Cut-off |-
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| Ranking Rewards | Ranking Position | Final Cut-off |
|---|---|---|
| Jewels x 3000, Skill Practice Ticket x 5, 1位 | 1st Place | 91000302 pts |
| Jewels x 3000, Skill Practice Ticket x 5, 2位 | 2nd Place | 85563012 pts |
| Jewels x 3000, Skill Practice Ticket x 5, 3位 | 3rd Place | 80000811 pts |
| Jewels x 2500, Skill Practice Ticket x 5, TOP10 | Position 4 - 10 | 48989869 pts |
| Jewels x 2500, Skill Practice Ticket x 5, TOP20 | Position 11 - 20 | 43551747 pts |
| Jewels x 2500, Skill Practice Ticket x 5, TOP30 | Position 21 - 30 | 41625335 pts |
| Jewels x 2500, Skill Practice Ticket x 5, TOP40 | Position 31 - 40 | 35763136 pts |
| Jewels x 2500, Skill Practice Ticket x 5, TOP50 | Position 41 - 50 | 33672193 pts |
| Jewels x 2500, Skill Practice Ticket x 5, TOP100 | Position 51 - 100 | 22781709 pts |
| Jewels x 2000, Skill Practice Ticket x 5, TOP200 | Position 101 - 200 | 12832523 pts |
| Jewels x 2000, Skill Practice Ticket x 5, TOP300 | Position 201 - 300 | 10260670 pts |
| Jewels x 2000, Skill Practice Ticket x 5, TOP400 | Position 301 - 400 | 8951878 pts |
| Jewels x 2000, Skill Practice Ticket x 5, TOP500 | Position 401 - 500 | 8496667 pts |
| Jewels x 1500, Skill Practice Ticket x 5, TOP1000 | Position 501 - 1000 | 5742763 pts |
| Jewels x 1000, Skill Practice Ticket x 5, TOP2000 | Position 1001 - 2000 | 3490223 pts |
| Jewels x 1000, Skill Practice Ticket x 5, TOP3000 | Position 2001 - 3000 | 2957016 pts |
| Jewels x 1000, Skill Practice Ticket x 5, TOP4000 | Position 3001 - 4000 | 2700002 pts |
| Jewels x 3000, Skill Practice Ticket x 5, TOP5000 | Position 4001 - 5000 | 2617173 pts |
| Jewels x 500, Skill Practice Ticket x 5, TOP10000 | Position 5001 - 10000 | 2073231 pts |
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