To get The Catch, trade 6 Raimei Angelfish, 20 Golden Koi, and 20 Rusty Koi to Kujirai Momiji at the Inazuma Fishing Association. Raimei Angelfish are the time-gated part: catch them at Tatarasuna in Kannazuka between 18:00 and 06:00 in-game time with False Worm Bait. Both Koi species use Fake Fly Bait and can appear at any in-game time.
What you need to unlock fishing
Fishing is available after you unlock the Serenitea Pot and complete the World Quest Exploding Population. These prerequisites and fish requirements are listed by the Genshin Impact Wiki fishing guide.
Fish required for The Catch
| Fish | Amount | Bait and conditions |
|---|---|---|
| Raimei Angelfish | 6 | False Worm Bait; Tatarasuna fishing point in Kannazuka, 18:00–06:00 in-game time. Source |
| Golden Koi | 20 | Fake Fly Bait; can spawn at any in-game time. Source |
| Rusty Koi | 20 | Fake Fly Bait; can spawn at any in-game time. Source |
How to get The Catch
- Unlock fishing by meeting the Serenitea Pot and Exploding Population requirements.
- Obtain and use False Worm Bait for Raimei Angelfish, and Fake Fly Bait for Golden Koi and Rusty Koi.
- Go to the Tatarasuna fishing point in Kannazuka between 18:00 and 06:00 in-game time to fish for Raimei Angelfish.
- Visit fishing points where Koi appear and catch 20 Golden Koi and 20 Rusty Koi. Their bait is Fake Fly Bait, and they are not limited to a particular in-game time.
- Take the fish to Kujirai Momiji at the Inazuma Fishing Association and exchange them for The Catch, a four-star polearm.
The cited fish and exchange details come from community-maintained Genshin Impact Wiki pages, rather than a first-party HoYoverse guide; they describe the listed requirements but should not be treated as official confirmation for every game version.
How to refine The Catch
Kujirai Momiji also sells four Ako’s Sake Vessels, the refinement material for The Catch. Each vessel costs 3 Raimei Angelfish, 10 Pufferfish, and 10 Bitter Pufferfish. The listed cost is per vessel, so obtaining all four requires 12 Raimei Angelfish, 40 Pufferfish, and 40 Bitter Pufferfish in addition to the fish exchanged for the weapon. Ako’s Sake Vessel details.
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