[Trial Initiation] Biwa Hayahide
![Support card art for [Trial Initiation] Biwa Hayahide](/assets/support-card-art/20006.png)
SR
Power
Analysis
Section titled “Analysis”Tier C. Passable early-game Power filler with a great SR Friendship Bonus, but the thin skill kit and SSR Power competition keep her off any real build.
She’s the Power SR you slot in while your roster is still patchy, and she covers the basics. A 20% Friendship Bonus at Lv40 is the selling point. For an SR that’s genuinely good, and it means Power friendship training actually pulls its weight. Add 30% Mood Effect and 10% Training Effectiveness, with her Lv25 unique stacking another +5 Training Effectiveness plus +20 Hint Frequency. Specialty Priority climbs to 60 at Lv40, so she sits on the Power tile instead of drifting onto other stats.
Past the bonuses, things fall apart. The skill kit is filler. Hints lean on positionals and conditionals (Hanshin Racecourse, Wet Conditions, Frenzied End Closers) that nobody builds around. Her event skill is Pressure, a debuff that barely justifies the slot. Initial Friendship Gauge sits at 30, so you still grind early bond before the friendship training even turns on.
Then there’s the company she keeps. Power is the bracket where SSRs like Kitasan Black run the show. Any decent SSR Power passes her on stat gain and skills the moment it’s leveled.
- Pros: 20% Friendship Bonus, 30% Mood, high Specialty Priority, free
- Cons: dead-weight skills, Pressure as the headline event, weak starting bond, hard-countered by SSR Power
Run her if she’s your only Power option. Don’t burn pulls going after her.
Card details
Section titled “Card details”| Field | Value |
|---|---|
| Character | Biwa Hayahide |
| Rarity | SR |
| Type | Power |
| Obtain | Gacha |
| Global release | Jun 26, 2025 |
| Hint skills | Hanshin Racecourse ○, Wet Conditions ○, Cloudy Days ○, Outer Post Proficiency ○, Frenzied End Closers |
| Event skills | Pressure, Inside Scoop |
Support effects
Section titled “Support effects”| Effect | What it does | Values |
|---|---|---|
| Friendship Bonus | Increases the effectiveness of Friendship Training | Lv1: 10%, Lv20: 15%, Lv40: 20% |
| Mood Effect | Amplifies the effect of mood when training together | Lv10: 10%, Lv20: 20%, Lv40: 30% |
| Stamina Bonus | Increases Stamina gain when training together | Lv45: 1 |
| Training Effectiveness | Increases the effectiveness of training performed together | Lv5: 1%, Lv25: 5%, Lv45: 10% |
| Initial Friendship Gauge | Increases initial Friendship Gauge when beginning a Career playthrough | Lv1: 10, Lv25: 25, Lv45: 30 |
| Race Bonus | Increases stat gain from races | Lv5: 1%, Lv25: 5% |
| Fan Bonus | Increases fan gain from races | Lv5: 1%, Lv25: 10%, Lv45: 15% |
| Hint Levels | Increases the level of hints gained through events | Lv1: 1, Lv25: 2 |
| Hint Frequency | Increases the frequency at which hint events occur | Lv1: 5%, Lv25: 30%, Lv45: 40% |
| Specialty Priority | Increases the frequency at which the character participates in their preferred training type | Lv30: 30, Lv40: 60 |
Unique effect
Section titled “Unique effect”Unlocks at Lv 25. Training Effectiveness: +5, Hint Frequency: +20
Training events
Section titled “Training events”A Big Sister’s Job
Section titled “A Big Sister’s Job”- Option 1: Power +15, Energy -10
Training in Theory
Section titled “Training in Theory”- Option 1: random — Stamina +5, Power +15, Energy -10, Bond +5, Skill Pressure (hint Lv3) / Power +5, Energy -20, Skill Pressure (hint Lv1)
A Big Sister’s Job
Section titled “A Big Sister’s Job”- Option 1: Power +15, Energy -10