diff --git a/src/runtime/globals.ts b/src/runtime/globals.ts
index 5764e0d..8992ce6 100644
--- a/src/runtime/globals.ts
+++ b/src/runtime/globals.ts
@@ -29,6 +29,7 @@ import {
 } from 'fs';
 import path from 'path';
 import { Runtime } from 'inspector';
+import { NumericLiteral } from '../parser/ast';
 
 export function createGlobalEnv(filename: string): Environment {
   const env = new Environment();
@@ -169,6 +170,14 @@ export function createGlobalEnv(filename: string): Environment {
             return MK_NUMBER(str.length);
           }),
         )
+        .set(
+          'inyuguti',
+          MK_NATIVE_FN((args, env) => {
+            const str = (args[0] as StringVal).value;
+            const charIndex = (args[1] as NumberVal).value;
+            return MK_STRING(str.charAt(charIndex));
+          }),
+        )
         .set(
           'inyuguti_nkuru',
           MK_NATIVE_FN((args, env) => {