Episode 4

"Monkey, Wha—?" is the fourth episode of the Kumo Desu ga, Nani Ka? anime adaptation. It broadcasted on January 29th, 2021.

Summary
The episode starts off with Araba deciding to ignore Kumoko and walks away. Kumoko then depends on her  skill to stay out of danger in the Lower Stratum, where a fair number of powerful monsters live. In the Lower Stratum, monsters from the Upper Stratum are considered weak. Kumoko encounters numerous powerful monsters including: Elroe Greshigard, High Finjicote and Greater Taratect. There are also Upper Stratum monsters in the Lower Stratum and to survive in the Lower Stratum, all of them are toxic (poisonous or venomous).

Desperate for food, Kumoko decides to eat one of the numerous Elroe Gastruchs on the wall. She immediately regrets her decision, not only does the Gastruch tastes bad, they also inflict rot damage. As a result, Kumoko levels up her skill to , Kumoko decides that she will only eat the Gastruch in the worst case scenario. Luckily, she found some high level Elroe Randanel for food and by defeating the Randanels she acquires two new skills:  & . While she cannot use  yet,  allows her to create a blob of weak poison, consuming MP in the process.

After successfully evading a horde of Bagragratchs, Kumoko was attacked by an Anogratch forcing her to kill it. Right before the Anogratch dies, it lets out an ominous scream. Kumoko eats the entire Anogratch, she then proceeds to build a nest-like shelter up high on the side of the wall using rocks as the base. Waking up in the middle of her sleep she realizes that she is surrounded by countless Anogratchs. Kumoko deduces that she has been marked by the Anogratch that she killed earlier and now its entire horde is out for vengeance.

With no where to run, Kumoko is cornered inside her nest, she decides to build nets of silk below her nest to stop the Anogratchs from climbing up, all the while getting bombarded by rocks. The Anogratchs try to counter the nets by climbing along the sides, but Kumoko decides to trap them under new nets anyway. Kumoko uses her  to drop poison directly on top of the Anogratchs trying to climb up the wall, making them fall off. With countless Anogratchs getting stuck on the webs covering the walls and poison dropping from above, there are seemingly no way for the Anogratchs to get close. However, the Anogratchs use their own stuck allies as ladders to traverse the webs and some manage to get inside the nest. Kumoko reacts in time and bound the Anogratchs with her threads, she decides to use these Anogratchs' bodies as a barrier for her nest. Sensing her intention, the Anogratchs within the nest roll off and drop to their death, they would rather die than getting in the way of their comrades.

As the fight drags on, Kumoko suffers multiple injuries including getting one of her leg torn off, only to be completely heal by leveling up. She then covers the all of the Anogratchs climbing the wall with threads and trigger a rock slide killing most of the Anogratchs on the wall. The battle isn't over yet as three Bagragratchs appears, with their superior physical prowess compare to Anogratchs, the Bagragratchs cause a great deal of damage to Kumoko. Only after being tied up by spider thread and having poison pour down their throats that two of the three Bagragratchs finally die. While fighting the last Bagragratch, Kumoko got half of her body along with four legs bitten off. On the edge of consciousness, Kumoko manages to kill the Bagragratch and levels up to receive the full heal, saving her life.

In the after credits scene, Kumoko finds a path to the Middle Stratum, discovering that it is filled with lava.

Major Events

 * Kumoko finds herself in the Lower Stratum.
 * Kumoko's fights a horde of Revenge monkeys.
 * Kumoko discovers the Middle Stratum.

In Order of Appearance

 * Kumoko

Monsters

 * Elroe Greshigard
 * High Finjicote
 * Greater Taratect
 * Finjicote
 * Elroe Frog
 * Elroe Baladorado
 * Elroe Gastruch
 * Elroe Randanel
 * Bagragratch
 * Anogratch
 * Elroe Gunerave

Locations

 * Great Elroe Labyrinth
 * Lower Stratum
 * Middle Stratum

Trivia

 * Anogratch has a unique skill called "Revenge", this means that if one of the Anogratch's horde dies, no matter the cost the entire horde will seek revenge. The only way to stop this is to wipe the entire horde out.

Music
kumo-anime.com/Music
 * Opening: Keep Weaving Your Spider Way (安月名莉子) / Riko Azuna
 * Ending: Ganbare! Kumoko-san (がんばれ! 蜘蛛子さん)