Gals of Summer is a limited Gacha that is available during the annually held event Summer Diary.
Event
Players have a chance to get the following Uber Rare and Super Rare characters:
| ▼Uber Rare | |
|---|---|
| Normal: Tropical Kalisa | Evolved: Tropical Kalisa X |
 Massive Area damage against Red enemies. |
 Massive Area damage against Red enemies. |
| Normal: Midsummer Rabbit | Evolved: Midsummer Cat |
 100% chance to slow Angel/Black enemies. |
 Strong against Angel/Black enemies. |
| Normal: Seashore Kai | Evolved: Seashore Kai, type μ |
 Super tough vs Black/Zombies (Area Attack) |
 Super tough vs Black/Zombies (Area Attack) |
| Normal: Waverider Kuu | Evolved: Waverider Kuu γ |
 Extra-effective vs. Zombies & Floating enemies! |
 Extra-effective vs. Zombies & Floating enemies! |
| Normal: Seabreeze Coppermine | Evolved: Seabreeze Coppermine κ |
 Chance to stop Red, Black, and Metal enemies. |
 Chance to stop Red, Black, and Metal enemies. |
| Normal: Squirtgun Saki | Evolved: Aquabuster Saki |
 attacks that only hit Floating/Black enemies. |
 attacks that only hit Floating/Angel enemies. |
| Normal: Summerluga | Evolved: Bikinilan Pasalan |
 |
 100% chance of Surge Attacks! |
| Normal: Kaguya of the Coast | Evolved: The Southern Sun |
 Area attacks might Slow Alien and Black enemies. |
 Area attacks have 100% chance to Slow Black and Alien attackers. |
| Normal: Night Beach Lilin | Evolved: Night Beach Lilinπ |
 Strong vs Traitless and Alien enemies, with a chance to Dodge attacks from those enemy types! Plus, Area Attacks have 100% Barrier Break. |
 Strong vs Traitless and Alien enemies, with a chance to Dodge attacks from those enemy types! Plus, Area Attacks have 100% Barrier Break. |
| ▼Super Rare | ▼Rare |
   
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| Regular Super Rare drops, Sunny Neneko, Suntan Cat, Lifeguard Cats, Brainwashed Bird Cat | Regular Rare drops |
