Sense Heat Source

Sense Heat Source (熱源感知) is an Intrinsic Skill/Extra Skill that belongs to the monster race, Tempest Serpent. It allows the Tempest serpent to Identify any heat reactions in the local area. Not affected by any concealing effects. This skill is also in possession by Rimuru Tempest. he gained this skill with the use of his (former) Unique skill: Predator. It is unknown whether they're other users of this skill.