Originally Posted by Shadoefrost

My bad for not clarifying, what i meant was does that mean there are 8 stages to clear(so 3 medals each i hope not sadly too weak) and if so is it possible to get strong enough during the event to get her with equip slot(14 medals is my aim)

Yes, it's fairly possible. Event stage 2-1 is usually just a little bit harder than event stage 1-1, but easier than 1-2. So if you can manage to get strong enough to 3-medal parts 1-1 and 1-2, and get one or two medals out of part 1-3, then it's fairly probable you'd manage part 2-1 and 2-2 as well, possibly grabbing another 1 or 2 medals from part 2-3, totalling between 12 and 14 medals.

Make sure to use the hints from the first post, hidden behind the spoiler tags. It will also be a tremendous help if you happen to have someone in your friends list with a helper squad worth about 40k points, to tank you through stage 3. For stage 4, you'd need a helper squad with a rating somewhere between 50k and 70k though, the last stage of each phase is a big RNG mess with really dozens of pest nests spawning those wasps that fly around. One wrong turn too many on the random arrows, and a 60k team ends up nearly dead on the next encounter.
If you don't have space in your friendslist: look through it again, and ditch everybody who hasn't been online since the day you started. About a third of the people seem to try Nutaku games for 1-2 days and then disappear. Their squads won't ever improve, they'll be useless helpers when you play, except maybe if they have a slow team, as rear guard against wasps.