Seiun Sky (Foolproof Plan) is an SSR Support Card with the Stamina specialty in Umamusume: Pretty Derby. See the effects for this Seiun Sky Support Card, its unique perk, Skills you can get from this card, and all its events and outcomes.
| Seiun Sky Related Guides | |
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List of Contents
Seiun Sky
Foolproof Plan |
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| Tier |
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| Rarity | SSR | ||||||||||
| Specialty | Stamina | ||||||||||
| Unique Perk | Mood Effect and Specialty Priority | Rare Skill |
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| 0 | 1 | 2 | 3 | 4 | |
|---|---|---|---|---|---|
| Friendship Bonus | 25% | 27% | 30% | 32% | 35% |
| Mood Effect | 30+15% | 33+15% | 36+15% | 40+15% | 40+15% |
| Initial Friendship | 20 | 21 | 23 | 25 | 25 |
| Race Bonus | 5% | 5% | 5% | 5% | 5% |
| Fan Bonus | 10% | 11% | 13% | 15% | 15% |
| Hint Level | - | - | - | Lv2 | Lv3 |
| Hint Frequency | 0% | 0% | 0% | 30% | 40% |
| Specialty Priority | 50+20 | 53+20 | 57+20 | 61+20 | 65+20 |
| Stamina Bonus | 0 | 1 | 1 | 1 | 1 |
| Skill | Effect |
|---|---|
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Increase time needed for late surgers to calm down when they become rushed. |
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Slightly decrease velocity of pace chasers late-race |
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Moderately increase performance in brackets 1-3. |
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Moderately increase performance when 4th favorite or below. |
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Slightly increase acceleration when positioned toward the back mid-race. (Front Runner) |
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Slightly increase velocity after activating many skills mid-race. |
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Slightly increase fatigue for rushed runners behind when positioned toward the front mid-race. |
| Skill | Effect |
|---|---|
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Moderately avoid becoming surrounded early-race. (Front Runner) |
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Increase ability to go to the front mid-race. (Front Runner) |
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Slightly increase ability to go to the front mid-race. (Front Runner) |
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Slightly increase ability to maintain the lead when leading by a large margin mid-race. (Long) |
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Slightly increase acceleration when positioned toward the back mid-race. (Front Runner) |
| Chain Events |
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❯ Be Strategic ☆
❯ Beware of the Trap ❯❯❯ It's All to Win |
| Random Events |
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・ Recruiting Advisors ・ Recruiting Cat Catchers |
| Choice | Outcome |
|---|---|
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Choice 1
(I agree with Seiun Sky.) |
・ 10 Energy ・ 1 Mood ・ 5 Wit ・ 5 Friendship ・ Dodging Danger +1 Skill Hint |
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Choice 2
(Tell her that she's just good at making excuses.) |
・ 30 Skill Pts ・ -5 Friendship ・ Second Wind +1 Skill Hint ・ End of Chain Event |
| Choice | Outcome |
|---|---|
| No Choices |
・ 15 Speed ・ 15 Stamina |
| Choice | Outcome |
|---|---|
| No Choices |
・ 10 Energy ・ 1 Mood ・ 5/10 Speed ・ 5/10 Stamina ・ 5/10 Wit ・ 5/30 Skill Pts ・ Fast Paced +1/Escape Artist +3 Skill Hint |
| Choice | Outcome |
|---|---|
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Choice 1
(You should try changing fishing spots.) |
・ 15 Wit ・ 5 Friendship |
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Choice 2
(You should try changing the way you move the rod.) |
・ 5 Friendship ・ Keeping the Lead +1 Skill Hint |
| Choice | Outcome |
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Choice 1
(Just wait in a sunny spot.) |
・ 10 Energy ・ 5 Wit ・ 5 Friendship |
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Choice 2
(Chasing it at full speed is sure to work.) |
・ -10 Energy ・ 15 Speed ・ 5 Stamina ・ 5 Friendship |
You can get Seiun Sky (Foolproof Plan) from either the Standard or Limited-Time Special Scouting Banners from the Scouting menu. Make sure to check the banner details to see if this Support Card can be pulled from the selected banner.
List of All Banners: Which Banner to Pull?

Event "Recruiting Cat Catchers" - "Just wait in a sunny spot." - "Chasing it at full speed is sure to work!" --> energy -10; speed +15; stamina +5; friendship +5
Seiun Sky (Foolproof Plan) Support Card Effects and Skills



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Mine doesn't have Escape Artist or Second Wind. What should I do?