By completing the mission, players can get drop Rock Lee (Never Gives Up). Additionally, by completing the A-rank mission, players can obtain Weight of Guts, an awakening material needed to awaken Rock Lee (Eight Gates) to 6 star (This Rock Lee is summoned from a special Gacha).
You will take mainly skill units due to there being quite a lot of Body enemies. However, this mission also has Heart, Skill, Bravery and Wisdom enemies in it and quite a few appear all at once. For this reason having an all Skill team might make some of the earlier parts of the map difficult.
Have 2 healers on the team and stall at the end of each section. Split up your characters carefully and when you have 1 enemy left have the 2 healers group in a corner healing and charging Chakra until you have max. Defeat the last enemy and then use your Ninjutsu in the next stage to get to the last enemy and do the same strategy.
Rock Lee's Jutsu
The boss, Rock Lee, does some serious damage and when you reduce his Health to below half he will get "Continuous", and this means he will do his Secret technique boosting his attack by 150% and then instantly does his Ninjutsu on your closest character.
You will want to make sure that this character is Skill otherwise you will be taking over 4000 damage and could cost you the mission. If you stick with 2 healers away from Rock Lee and a strong hitting Skill character tanking his hits and attacking back you should be able to defeat him but it might take a little bit of time.
Has good stats with being a 6* and can be used as your main wall against Rock Lee.
If he has all his abilities can a good chance to dodge attacks and he also has his Secret technique which gives him perfect dodges.
His Ninjutsu hits for roughly 5435 against Rock Lee and has a chance to immobilize him for 2 turns (only 20%).
His Buddy skill also reduces damage from Heart types by 20% so is useful because in the earlier stages of the map there are 3 of them and as you will have mostly a Skill team it can be a little tricky.