I own a ring, a checkers set and a bag of laughing cow cheese. Not Inuyasha.
In kanji, the word rin is defined as a circle, a loop, or a ring.
Sesshoumaru was walking through the forest one day with Jaken, Rin, and Ah-Un. Suddenly the quiet day is interrupted as Inuyasha comes leaping down and lands in front of Sesshoumaru with the Tetsaiga drawn. Sesshoumaru raised an eyebrow at his brother's audacity, "What do you want Inuyasha?"
"You know what I want, you bastard," was the defiant reply.
"This Sesshoumaru was under the impression that you were collecting the shards of that ridiculous jewel in order to gain power."
Inuyasha snorted, "That's takin' too long. We need this now."
The other eyebrow went up, "And what makes you think that I will just let you have this power?" he asked in a bored voice.
"Cause I can kick your ass, you son of a bitch." He smirked, showing off his very nice teeth.
"Flattery will get you nowhere, hanyou."
Inuyasha growled then grinned. He reached into his haori and pulled out the pictures of Sesshoumaru that he had taken of him one morning, "Than all of the other lords will find out exactly what you look like first thing in the morning. Who will ever call you a bishonen when they see your hair all tangled and your eyes all puffy and red and pillow creases in your face?" he asked as he waved them at the demon lord.
Sesshoumaru growled and waved his hand at Inuyasha, "Very well, but do not damage it."
"Yeah, yeah, I know. Come on kid." Inuyasha scooped up Rin and leapt off through the trees, laughing maniacally, "Mwa ha ha ha! Take that Naraku! The Rin of Power is mine at last!"
Sesshoumaru merely shook his head at his brother's antics and sighed as the "Rin" of power giggled and flapped her arms while pretending to fly.