TLDR: Pay-to-win trash. Long version: New servers every two f*cking weeks just to bait whales (or suckers, as I like to describe them) to hop servers, killing older servers (all 395 of them). Progression stalls for f2pers because you need much $$$luck$$$ pulling four f*cking units of the same element and rarity to evolve a single character, all that while severely limiting the inventory, which by the way is only expandable with premium currency, greatly increasing its price for a negligible amount of extra space. Some functions are locked behind VIP levels, which you can only increase by spending real money.
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Clara♪
5.0Best idle game with kawai girls [怪笑]
Maria
3.75I've been playing this game for almost four years and decided to review it. pros : - crystals are easy to get - you can easily get material needed for leveling up the characters, limit breaking them and stuff - they are quite generous with the events - the characters are absolutely gorgeous and lovable - it's not that hard to get the characters you want during their banner (?) - the skins are beautiful cons : - the music is the same and boring thing - they sexualise many child-looking characters - it's hard to rank high in the leaderboards as all of the top players are p2w - it's not easy to upgrade your characters when they are LB1+ - they add many unnecessary game modes - you can't progress in the campaign unless you reach a certain level - this isn't really a problem of the game itself, but I've met a ton of online-daters there