So, what is Augmented Reality Girls Trinary? Well, if you don't know what Ciel nosurge was, maybe that's a good place to start reading. While Ciel nosurge was a blend of VN, relationship sim, and raising sim, Trinary is basically all that but with an anime and mobage combat attached.
If you landed here from a search engine and were interested mostly in the anime, then I'm sorry but this blog is mostly about the game portion of the experience.
Your only two options to this sudden proposal are 'Okay' and 'But I'm a girl...'. Selecting the second one just leads Chiharu to assure you that it's okay - girls can marry girls, no excuses, you're marrying these girls, okay? Once that's settled, she frowns and says something to the effect of "Statistically, if I don't let you flirt with these cute girls within 5 minutes, you're going to uninstall this program" (referring to the app). Oh, the harsh realities of free-to-play mobile gaming...you get the option to protest here, promising that you won't uninstall if she takes her time to introduce the setting and characters to you, or to just skip to the promised happy fun time with the girls. I'm at home playing this, I'm in no hurry, so of course I tell Chiharu to take her time. "It'll take around 32 minutes, are you sure? You promise you won't uninstall before then?" Yeah yeah I promise, properly introduce the setting to me, I'll be patient!
Sending these texts, by the way, costs emotion crystals. Each crystal corresponds to certain types of responses (reassuring, cheerful, sympathetic, etc.), and if you don't have enough of a certain crystal you can't choose the answer you want to give! How cunning, using cute anime girls and holding you hostage to buying more gems from the shop in order to choose the dialogue option you want. Of course, you can also just save up the gems from daily quests and wait until you have enough of all of them to make sure that you're never short of any types for all dialogue choices, which is what I plan to do.
The game limits you to pre-determined dialogue options at all times - there is no actual chat bot where you can free-form send texts to anyone. I hope they add something like that in the future.
So, the gameplay...basically, you follow along with the anime's story in VN format at key parts, and send text messages to the girls, giving advice, and also diving into their minds to defeat bad feelings/emotions. Of course there's diving into a spirit world, it's a Tsuchiya game. Generally, diving into battles requires AP, which is your standard slowly-regenerating-mobage-resource.
The combat has you bring 4 characters (+1 assist from another player) into battle. They have skills which consume energy to use, and countering elements (emotion-flavored instead of the usual fire-water-wind-earth, but the same basic idea). You can also form chains of energy, attack, or heal (each of which are randomly allotted to your 5 characters each round) to heal or gain bonus attack power/energy each round. Of course, these characters can be fused with feeder characters to level up and evolve and all that mobage garbage. You can spin the gacha with your mobage gems for SSRs, SRs and all that bullshit.