A tower defence game centred on protecting the planet from various attacks from outer space, ranging from asteroids to aliens. You take on the role of a commander, leading a group of students armed with a variety of rifles to defend the planet. To make the game more appealing, the student characters are designed in the style of Japanese animation, or anime.
There’s also an interactive feature with the students: tap on specific areas to see their unique reactions.
Our main student is called Ruby; enhance and equip cores to boost her power. Cores contain a variety of status boosts, ranging from boosts for all students to boosts for specific students.
Note: Pay attention to the attack intervals of each student, as this will help you choose the right line-up. Only five students can take part in the battle, and their appearance is random. It doesn't have to be five, at the beginning of the stage you can even defeat them with just 3 students.
Students aren’t obtained from gacha; they’re earned by clearing stages, and of course, the rewards are random. I’ve only just realised that the higher your account level, the more possibilities there are—and why wouldn’t there be? If only students with long attack intervals appeared, Ruby would be in a right pickle T-T.
A preview of my experience
Gacha is only for cores, with rarities ranging from uncommon to mythical (to be honest, I don’t know the name for anything beyond legendary^^), and with random stats; there are two types: normal and advanced. With normal gacha, the rarity is limited to legendary, whereas with advanced gacha, it can reach legendary or higher.
Total size when I play this game is 628 MB.
Don’t forget to link your Google account to the game, as redemption codes and various events on the website require you to log in using an account linked to the game. Unfortunately, the redemption codes currently available are only valid for a limited time; redemption codes for new players with no time limit are not yet available.
Super login event (by website)

E.D.E.N - gameduo Web Store
https://web-store.gameduo.net/en/dfd
Then check and claims the in-game mailbox
Login 7 days event (in game)
Daily mission
Note: the first battle is quite boring as the game speed is set to 1x; it takes around 4–5 minutes, depending on how quickly you defeat the enemies. Once you’ve completed the stage, if you replay it, the speed will change to 1.5x and cannot be adjusted. The game speed can be adjusted by purchasing a premium package.
Link download for Android user

E.D.E.N : The Last Line - Apps on Google Play
https://play.google.com/store/apps/details?id=net.gameduo.dfd
Thanks and see you next game...