It sounds like you're looking for a guide or explanation for the Japanese light novel / manga / anime title:
Sora turned to Akari, her skepticism gone. “Okay, you win. He’s a titan. Can he reach the Wi-Fi router on the high cabinet? Mine’s been acting up.” uchi no otouto maji de dekain dakedo mi ni konai new
Conclusion
If this phrase resonates with you – if you’ve ever had something "maji de dekai" in your life that simply refuses to "come to your body" – then you are not alone. The "new" means the pain is ongoing. It sounds like you're looking for a guide