So, understanding the subtitles really doesn't help make this less weird.
同盟 means allegiance and the tagline is 'Making waking up everyday fun!'.
You have the option of choosing between analogue and digital clocks for massive customization. You set your wake up time and if it's the same as other people's, you can form allegiances. You have to touch the spinning avatar to stop the alarm clock.
You support them to wake them up and they support you if they wake up early. You all get trophies for getting up on time and all your data (killstreaks and KDR I guess) are recorded in minute detail for later. You can also become friends with other members. Alliances apparently consist of 5 people.
Also, if you wake up late, you have to uncover your allies' support messages by touching them. So basically making you even later if you had something to do in the morning...