Mission name: Apprehend the Party Crashers!
Mission rank: B
Objective: Investigate the rumours of a group of troublemaker ronins planning on wrecking havoc during the Takigakure festival, and apprehend them if found.
Location: Takigakure
Reward: 300 Ryo or alternatives
Mission description: The Takigakure administration have received several reports of possible disturbances during the festival by ronin drawn to the village by the festive mood and large populations of people. This particular rumour may be more than a rumour, as a well known group of trouble-making ronin have been spotted lingering just outside of the village, with no apparent intention in simply joining the festivities. Apprehend them before they have the chance to get into populated areas.
Mission details: The group of five hostiles are in full gear, and will be found openly discussing their plans of wrecking havoc during the festival, clearly nothing more than troublemakers with higher than average abilities.

Name: Masked Leader
Age: Unknown, likely around his 20s.
General Appearance: Moderately tall male dressed in basic black shinobi outfit, with a dark blue vest on top. A face mask, covering the lower portion of his face, has an image of a mouth and a large tongue lolling out in a mocking expression.
Personality: Cocky, would rather fight to the end than give up.
Motivations: Becoming well known as a troublemaking group.
Fears: Burning to death.
Abilities: SPD, STR, END: C-2. REA, PER: D-3. B rank Bukijutsu (Kenjutsu), B rank Ninjutsu, B rank Katon.
Other: Uses a variety of Ninjutsu techniques [Katon library techniques], as well as a C rank Katana.

Name: Rest of the Masked Gang (4)
Age: 18-25
General Appearance: Dressed either in the same black shinobi outfit as their leader, or in more casual clothing (hoodie and jeans). All are wearing a face mask similar to the leader, but with different mouth expressions drawn.
Personality: Mostly all the "follow the leader" type, and laughs when he makes a joke, or agrees when he talks. Occasionally comes with up taunts of their own.
Motivations: Becoming a well known group.
Fears: Losing and disbanding.
Abilities: All have stats at C-0, with B rank Bukijutsu, C rank Ninjutsu [C rank elements, one each]
Other: Uses a variety of Ninjutsu techniques [library techniques], each has a C rank Katana.

I'm going to need the elements that each npc can use. Having the usage of variety ninjutsu sounds very vague.

granted~