I Asked You to Take Care of Yourself, but Did You Use the Mecha?

In this era when young people's nerves are as fragile as glass and only veterans can withstand the severe pain of mechas, 78-year-old Shen Feng lives in Sanatorium No. 99. He suffers from severe Parkinson's disease and relies on an exoskeleton to even eat. He is despised by his granddaughter as "a remnant of the times." Until the beast tide broke through the absolute defense line, the human elite collapsed across the board. In the desperate rainstorm, the first-generation mecha "Silent Thunder" that was thrown into the scrap pile suddenly activated. Shen Feng connected to the neural link, and his hands that usually trembled violently reached a strange "static balance" at this moment due to high-frequency operation. Without AI assistance or remote locking, he slaughtered all the S-class beasts in three seconds with just a rusty high-frequency vibrating titanium knife. The hatch opened, and everyone greeted the hero, but they only saw an incontinent, collapsed, dying old man. He coughed violently, and what he spit out was not blood, but a strange blue fluorescent liquid. These liquids dripped on the floor and crawled back into the depths of the mecha like living creatures—— "Don't worry... Old man," the old man stroked the hot dashboard, his eyes flashed with madness that made the gods tremble, "Our funeral will have to be postponed a little longer."