If you know about Kaeya is the only Genshin Impact Starter Character that didn't have a same voice as any Falcom Characters & instead he has a same voice as Atelier Characters right under the Twilight Land Arc which is a Dusk Characters which is Julius in Atelier Ayesha: The Alchemist of Dusk when it comes in Japanese Voice especially I don't know about Atelier games anymore & I'm not going to play it since Amber & Lisa has a same voice as Falcom Characters regarding on which Voice Language will be either English or Japanese for instance, Amber has a same voice as Shizuna in Trails Through Daybreak when it comes in English Voice & Nadia in Trails into Reverie & she made it return in Trails Through Daybreak 2 when it comes in Japanese Voice & Lisa has a same voice as Mariabell in Crossbell Duology & she made it return in Trails of Cold Steel 4 even she also did play as Himeko in Honkai: Star Rail when it comes in Japanese Voice not to mentioned that Kaeya also has the Hangout Event when you made it this far all the way to the Sumeru Arc especially he's also one of the worst character due to his Character Demo is absolutely a mess & this explains Diluc is considered as the best character since he has a same voice as Rean in Trails of Cold Steel Saga & Hummel in Ys VIII: Lacrimosa of Dana for example when it comes in English Voice & Kaeya is like, 'Why, Diluc? You also did play as any of the Falcom Characters just like the rest of them while I didn't have one?!'. If they knew that Kaeya is also from Khaenri'ah when it comes in an Archon Story, things will be different story. On the plus side, if you allowed Qiqi & Ayaka joins your adventure for example, you don't need to use Kaeya since Qiqi can heal other Party Members including herself with her Elemental Skills based on Attack Power even she can mark a single enemy with the Fortune Preserving Talisman by striking one of them & any of the Party Members attack onto the marked enemy will get healed while Ayaka has the Alternate Sprint with the similar way to Mona & once she finishes up her Sprint, she'll infused her weapon with Ice & dealing an Ice Damage to the enemy & she's also excellent against any Lightning-Based enemies & Water-Based enemies & good against Fire-Based enemies, however. On that note, I don't use Kaeya especially there are many better Ice Characters like Qiqi, Ganyu, Eula & Ayaka for example unless if you main the Starter Characters (Amber, Kaeya & Lisa), but getting their Constellations will be even more rarer due to more of the ⭐️⭐️⭐️⭐️ Characters are introduced in an upcoming Version & later on, they'll become available on the Standard Banner. To make matters worse that Amber, Kaeya & Lisa will never be shown on the Character Event Banner or Weapon Banner not like Honkai: Star Rail where March 7th & Dan Heng can be shown on the Character Event Banner or Light Cone Banner where you can get their Eidolons & max up them up for March 7th & Dan Heng even though March 7th & Dan Heng are Starter Characters for Honkai: Star Rail & you can get them in many ways, but not this one. The only way to get the Starter Characters' Constellations is to get it on the Standard Banner or buy it from the Paimon's Bargain with the cost of 34 Masterless Starglitters at the Starglitter Exchange if you are desperate. Another reason when I played as Aether, my Amber is the first one to reach C6 since Collei supported her even I got Tighnari from the Standard Banner after I got Cyno in Early Version 3.1 & Lisa is the second one to reach C6 since she'll get her new costume even sooner in Version 3.4 while Kaeya did not due to the new ⭐️⭐️⭐️⭐️ Characters will show up in the Standard Banner where you'll see Sara or Yun Jin or Shinobu or Layla or Faruzan or Yaoyao for example About the Story In this tale where Kaeya wants Aether/Lumine to find the treasure that been lost in many years ago but then, the Treasure Hoarder is also want the treasure at the Arcadia Ruins but it turns out that this ruins has no treasure at all & only found the Ruin Guard but they managed to take it out & the Favonius Knight arrested them & they discovered that Kaeya is telling a lie & ended up to make a bad time when it comes in Treasure Hunt