Boil Release: Howling Tears

is a technique developed by Hōsōshi to infuse his corrosive chakra with natural rain or Grudge Rain. Each droplet of the rain that touches the victim will slowly begin to bite away the layers of clothing, until it reaches the skin. Upon reaching the skin, the victim will feel the burning sensation on the surface that will increase rapidly by extended exposure. Eventually the corrosive chakra will bite through the skin, which could be fatal if not treated on time or neglecting to flee the field of rain. If the victim has exposed wounds, these droplets will immediately bite through the soft skin.

Considering the technique is wide-scaled it has a disadvantage in that its effects are indiscriminate. To that, it does appears that Hōsōshi is immune to its effects, considering he could freely stand in the midst of the rainburst without being affected. Secondly, Hōsōshi can "shield" allies by utilising his chakra control to "remove" the corrosive chakra when it nears him in a certain radius.