Hikari (Summer) is an event partner in Arcaea. She was obtainable along with Tairitsu (Summer) from August 31st, 2018 to September 7th, 2018 to celebrate the end of summer. She was made available again from August 3rd, 2019 to August 10th, 2019.



Main Article: Hikari § Name


Many elements of Hikari's regular outfit are present in her summer outfit, such as her beret and clips, her blue pleated skirt, and her white overskirt and its ribbons. However, much of the rest of her summer outfit is simpler and more lightweight.

Hikari wears a white shirt with short, frilled sleeves and an off-shoulder neckline frilled with red trim. A diamond with a similar design to that of her clips, along with a short red ribbon with white stripes, is attached to her shirt. A red ribbon ending in decorations similar to those on her overskirt is tied around her waist, with the bow resting at her left side.

Stats by Level

LEVEL 1 2 3 4 5 6 7 8 9 10
FRAG 41 41 41 41 42 43 44 46 49 52
STEP 49 49 49 49 50 51 53 55 58 62
OVER 31 31 31 31 31 32 33 34 36 39
LEVEL 11 12 13 14 15 16 17 18 19 20
FRAG 56 59 61 63 65 66 66 66 66 67
STEP 67 70 73 76 77 78 79 79 79 80
OVER 41 44 46 47 48 49 49 49 49 50


In contrast with her original form, Hikari (Summer) has a higher stat sum at level 20 (147 vs 139), as well as a reversed stat allocation.

  • Her maximum FRAG stat translate to 1.34x fragment multiplier.
  • Her maximum STEP stat translate to 1.60x step multiplier for world mode.

In this form, Hikari is more viable to use in world mode, although there are several other STEP-focused partners that are still much more effective, including other mirror partners, e.g. Lethe. World Mode is not affected by clear state (except for premature Track Losts caused by Challenge partners) and, as such, focusing on Recollection Rate rather than getting a high score is not advisable.

Hikari (Summer)'s main attraction is her skill, which is a combination of the MIRROR skill and the EASY recollection rate. This makes her effective for correcting muscle memory/relearning harder charts, while still gaining a Track Complete.


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Starting Partners HikariTairitsu
Story Partners Tairitsu (Axium)Tairitsu (Grievous Lady)Hikari (Zero)Hikari (Fracture)Tairitsu (Tempest)
Side Story Partners KouLetheEtoLunaSayaKanae
Collaboration Partners SapphireHikari & FisicaTairitsu & TrinHikari & SeineTairitsu (Grievous Lady) & Chuni Penguin
Soundtrack Partners Hikari (Fantasia)Tairitsu (Sonata)
Limited-Time Partners StellaIlithShirabeHikari (Summer)Tairitsu (Summer)AyuEto & LunaYumeNono ShibusawaHaruna MishimaRegulus (MDA-21)Pandora Nemesis (MTA-XXX)Chuni PenguinSiaDORO*C
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