Little D. No. 2

"'I'm Little D., the very clever, very helpful, and very cute demon familiar!'" Little D. No. 2 is a tiny demon from the Demon Lord’s Castle and was mentioned to have assisted MC with their assigned RAD tasks. It is first introduced in the story in Lesson 7-10 as a guide for the items and their history in the castle.

It later returns in Lesson 25-10 when it got separated from Diavolo and Lucifer and runs into Mammon and MC, heading for the traveling carnival to look for them together.

Personality
No. 2 is very knowledgeable and likes to give out information when asked. It also likes to tease Mammon by mimicking his thoughts out loud, calling him "Papa", and even scaring him when they went to the haunted house.

Tasks
In Tasks, it appears as a battle opponent with Special Skill "SHADOW ATTACK" spelled in reverse. Its battle dialogues are also spelt in reverse. It can also take the shape of the demon brothers during battle.

During Battle

 * "EGRAAAHC!"
 * "KCABYAP"
 * "✰TTttXeeEEnNnnN"
 * "GraceEDcoup"

Trivia

 * As of now, it's the only Little D. to make an appearance in the storyline.
 * It's very fond of MC, for Diavolo told MC through a text that it missed them and asked if they would like to visit it.
 * He's usually refered as Carlos by the fandom

From Devilgram stories

 * In Broadcasting to You, it's shown that Little D. No. 2 is the director at Otaku FM.
 * In The Doting Demon Lord, Little D. No.2 acts as a security guard for the Demon Lord’s Castle.